DE102013102648A1 - "Electric motor with function monitoring of engine mounts" - Google Patents
"Electric motor with function monitoring of engine mounts" Download PDFInfo
- Publication number
- DE102013102648A1 DE102013102648A1 DE102013102648.6A DE102013102648A DE102013102648A1 DE 102013102648 A1 DE102013102648 A1 DE 102013102648A1 DE 102013102648 A DE102013102648 A DE 102013102648A DE 102013102648 A1 DE102013102648 A1 DE 102013102648A1
- Authority
- DE
- Germany
- Prior art keywords
- electric motor
- stator
- vibration sensor
- bearing
- rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
- H02K5/1675—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at only one end of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
Die vorliegende Erfindung betrifft einen Elektromotor (1), umfassend einen Stator (2) mit einem relativ zu diesem drehbar in Lageranordnungen (11) gelagerten Rotor (4) sowie ein Motorgehäuse (3, 12) und einen Schwingungssensor (16) zur Aufnahme von im Elektromotor (1) auftretenden Schwingungen, die durch Funktionsstörungen an den Lageranordnungen (11) verursacht werden. Es ist hierbei die Ausbildung als Außenläufermotor vorgesehen. Der Stator (2) weist ein Lagertragrohr (7) auf, das einendig mit einem ringförmigen Statorflansch (8) verbunden ist. In dem Lagertragrohr (7) sind in Richtung einer mittleren Längsachse (X-X) des Lagertragrohrs (7) zueinander beabstandete Lageranordnungen (11) angeordnet, in denen eine Welle (9) des Rotors (4) gelagert ist. Der Schwingungssensor (16) ist am Statorflansch (8) befestigt.The present invention relates to an electric motor (1) comprising a stator (2) with a rotor (4) rotatably mounted relative to it in bearing arrangements (11) as well as a motor housing (3, 12) and a vibration sensor (16) for receiving im Electric motor (1) occurring vibrations caused by malfunctions in the bearing arrangements (11). It is designed as an external rotor motor. The stator (2) has a bearing support tube (7) which is connected at one end to an annular stator flange (8). In the bearing support tube (7) in the direction of a central longitudinal axis (X-X) of the bearing support tube (7) spaced apart bearing arrangements (11) are arranged, in which a shaft (9) of the rotor (4) is mounted. The vibration sensor (16) is attached to the stator flange (8).
Description
Die vorlegende Erfindung betrifft einen Elektromotor, umfassend einen Stator und einen relativ zu diesem drehbar in Lagern gelagerten Rotor sowie ein Motorgehäuse sowie einen Schwingungssensor zur Aufnahme von im Elektromotor auftretenden Schwingungen, die durch Funktionsstörungen an den Lagern verursacht werden.The present invention relates to an electric motor comprising a stator and a rotatably mounted in bearings rotatably mounted rotor and a motor housing and a vibration sensor for receiving vibrations occurring in the electric motor, which are caused by malfunction of the bearings.
In der Industrie sind Systeme wett verbreitet, bei denen ein oder mehrere Vibrations- oder Schwingschnellesensoren außen auf dem Gehäuse des zu überwachenden Motors angebracht sind. Hierzu kann z. B. auf die
Der vorliegenden Erfindung liegt die Aufgabe zu Grunde, ausgehend von einem gattungsgemäßen Elektromotor, diesen derart zu verbessern, dass mit geringem Bauteil- und Schaltungsaufwand kostengünstig eine sichere Funktionsüberwachung der Lager des Motors erfolgen kann.The present invention is based on the object, starting from a generic electric motor, to improve this so that can be done with low component and circuit cost cost secure operation monitoring the bearings of the engine.
Erfindungsgemäß wird dies dadurch erreicht, dass bei einer Ausbildung des Elektromotors als Außenläufermotor, bei dem der Stator ein Lagertragrohr aufweist, das einendig mit einem ringförmigen Statorflansch verbunden ist, und in dem Lagertragrohr in Richtung einer mittleren Längsachse des Lagertragrohrs zueinander beabstandete Lageranordnungen angeordnet sind, in dem eine Welle des Rotors gelagert ist, und der Schwingungssensor am Statorflansch auf dessen vom Rotor abgewandten Seite befestigt ist. Der Schwingungssensor ist vorteilhafterweise als Schwingschnellesensor ausgebildet, wobei es sich beispielsweise um einen Laser-Doppler-Vibrometer, ein MEMS (Micro-Electro-Mechanical System) auf Halbleiterbasis oder einen Piezosensor handeln kann. Vorteilhafterweise ist der Schwingungssensor direkt auf einer Freifläche des Statorflansches befestigt, die in radialer Richtung zur Längsachse sich unmittelbar an das Lagertragrohr anschließt. Hierbei ist der Statorflansch insbesondere mit dem Lagertragrohr einstückig ausgebildet. Erfindungsgemäß können demnach die beiden im Lagertragrohr angeordneten Lager mit demselben Schwingungssensor gleichzeitig überwacht werden. Hierbei kann zwar nicht sicher differenziert werden, welches der beiden Lager von einem Schaden betroffen ist, dies führt jedoch nicht zu einer Beeinträchtigung der Systemfunktion, da sowieso der gesamte Elektromotor ausgetauscht wird, da die typischerweise als Festsitzlager mit Presssitz in dem Lagertragrohr befindlichen Lager vor Ort nicht ausgetauscht werden können. Ein erfindungsgemäßer Motor kann insbesondere zum Antrieb von Ventilatoren benutzt werden, wobei es sich um ein Massenprodukt handelt, bei dem es insbesondere auf eine kostengünstige und fehlerunanfällige Lösung ankommt. Bei dem erfindungsgemäßen Elektromotor handelt es sich vorzugsweise um einen bürstenlosen Außenläufermotor mit integrierter Elektronik, wobei die Elektronik vorteilhafterweise in einem Teilgehäuse angeordnet ist, das am Statorflansch auf dessen vom Rotor abgekehrten Seite befestigt ist. In diesem Gehäuse ist auch der erfindungsgemäße Schwingungssensor angeordnet.According to the invention this is achieved in that, in an embodiment of the electric motor as external rotor motor in which the stator has a bearing support tube which is connected at one end to an annular Statorflansch, and arranged in the bearing support tube in the direction of a central longitudinal axis of the bearing support tube spaced-apart bearing assemblies, in a shaft of the rotor is mounted, and the vibration sensor is mounted on the stator flange on its side facing away from the rotor. The vibration sensor is advantageously designed as a fast vibration sensor, which may be, for example, a laser Doppler vibrometer, a semiconductor-based MEMS (Micro-Electro-Mechanical System) or a piezoelectric sensor. Advantageously, the vibration sensor is mounted directly on an open surface of the stator flange, which connects in the radial direction to the longitudinal axis directly to the bearing support tube. In this case, the stator flange is in particular integrally formed with the bearing support tube. According to the invention, therefore, the two bearings arranged in the bearing support tube can be monitored simultaneously with the same vibration sensor. Although this can not be differentiated safely, which of the two camps is affected by damage, but this does not lead to a deterioration of the system function, since anyway the entire electric motor is replaced, as typically located as a fixed seat bearing with interference fit in the bearing tube bearing on site can not be exchanged. An inventive motor can be used in particular for driving fans, which is a mass product, in which it depends in particular on a cost-effective and error-prone solution. The electric motor according to the invention is preferably a brushless external rotor motor with integrated electronics, wherein the electronics is advantageously arranged in a partial housing which is fastened to the stator flange on its side facing away from the rotor. In this case, the vibration sensor according to the invention is arranged.
Da erfindungsgemäß der Sensor derart angeordnet ist, dass nur ein kurzer Entfernungsweg zu den Lagern vorhanden ist, ist die Übertragung hochfrequenter Körperschallanteile ohne Weiteres möglich.Since according to the invention the sensor is arranged such that only a short distance to the camps is available, the transmission of high-frequency structure-borne sound components is readily possible.
Vorteilhafte Ausführungen der Erfindung sind in den Unteransprüchen enthalten und werden an Hand des in der beiliegenden Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Es zeigt:Advantageous embodiments of the invention are contained in the subclaims and will be explained in more detail with reference to the embodiment shown in the accompanying drawings. It shows:
Sofern bestimmte beschriebene und/oder aus der Zeichnung entnehmbare Merkmale des erfindungsgemäßen Elektromotors nur im Zusammenhang mit einem oder mehreren Merkmalen beschrieben sind, sind diese aber auch gemäß der Erfindung unabhängig von diesem Ausführungsbeispiel als Einzelmerkmal oder aber auch in Kombination mit anderen Merkmalen des Ausführungsbeispiels wesentlich und werden als zur Erfindung gehörig beansprucht.If certain described and / or removable from the drawing features of the electric motor according to the invention are described only in connection with one or more features, but these are also essential according to the invention regardless of this embodiment as a single feature or in combination with other features of the embodiment and are claimed as belonging to the invention.
Der in
Erfindungsgemäß weist der Statorflansch
Falls in einer Anlage mehrere erfindungsgemäße Elektromotoren
Erfindungsgemäß wird ein Elektromotor
Die Erfindung ist nicht auf das dargestellte und beschriebene Ausführungsbeispiel beschränkt, sondern umfasst auch alle im Sinne der Erfindung gleichwerkenden Ausführungen. Ferner ist die Erfindung bislang auch noch nicht auf die in den Ansprüchen definierten Merkmalskombinationen beschränkt, sondern kann auch durch jede beliebige andere Kombination von bestimmten Merkmalen aller insgesamt offenbarten Einzelmerkmalen definiert sein. Dies bedeutet, dass grundsätzlich praktisch jedes Einzelmerkmal weggelassen bzw. durch mindestens ein an anderer Stelle der Anmeldung offenbartes Einzelmerkmal ersetzt werden kann. Insofern sind die Ansprüche lediglich als ein erster Formulierungsversuch für eine Erfindung zu verstehen.The invention is not limited to the illustrated and described embodiment, but also includes all the same in the context of the invention embodiments. Furthermore, the invention has hitherto not been limited to the feature combinations defined in the claims, but may also be defined by any other combination of specific features of all individual features disclosed overall. This means that in principle virtually every single feature can be omitted or replaced by at least one individual feature disclosed elsewhere in the application. In this respect, the claims are to be understood merely as a first formulation attempt for an invention.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Elektromotorelectric motor
- 22
- Statorstator
- 33
- Motorgehäusemotor housing
- 44
- Rotorrotor
- 66
- Statorblechpaketstator lamination
- 77
- LagertragrohrBearing support tube
- 88th
- Statorflanschstator flange
- 99
- Wellewave
- 1111
- Lageranordnungenbearing assemblies
- 1212
- TeilgehäuseEnclosures
- 1313
- Motorelektronikengine electronics
- 14 14
- Leiterplattecircuit board
- 1616
- Schwingungssensorvibration sensor
- 1717
- Freiflächeopen space
- X-XX X
- Längsachselongitudinal axis
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- US 5629870 [0002] US 5629870 [0002]
- US 5726911 [0002] US 5726911 [0002]
Claims (10)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013102648.6A DE102013102648A1 (en) | 2013-03-14 | 2013-03-14 | "Electric motor with function monitoring of engine mounts" |
US14/772,993 US9876410B2 (en) | 2013-03-14 | 2014-03-13 | Electric motor with functional monitoring of the motor bearings |
EP14710533.2A EP2972431B1 (en) | 2013-03-14 | 2014-03-13 | Electric motor with functional monitoring of the motor bearings |
PCT/EP2014/054929 WO2014140155A1 (en) | 2013-03-14 | 2014-03-13 | Electric motor with functional monitoring of the motor bearings |
CN201480010397.0A CN105008944B (en) | 2013-03-14 | 2014-03-13 | The electro-motor of Function detection with motor bearing |
ES14710533.2T ES2636803T3 (en) | 2013-03-14 | 2014-03-13 | Electromotor with monitoring of motor bearing operation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013102648.6A DE102013102648A1 (en) | 2013-03-14 | 2013-03-14 | "Electric motor with function monitoring of engine mounts" |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102013102648A1 true DE102013102648A1 (en) | 2014-09-18 |
Family
ID=50288054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102013102648.6A Withdrawn DE102013102648A1 (en) | 2013-03-14 | 2013-03-14 | "Electric motor with function monitoring of engine mounts" |
Country Status (6)
Country | Link |
---|---|
US (1) | US9876410B2 (en) |
EP (1) | EP2972431B1 (en) |
CN (1) | CN105008944B (en) |
DE (1) | DE102013102648A1 (en) |
ES (1) | ES2636803T3 (en) |
WO (1) | WO2014140155A1 (en) |
Cited By (6)
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---|---|---|---|---|
DE102018108827B3 (en) | 2018-04-13 | 2019-05-29 | Trumpf Schweiz Ag | Method for controlling at least one radial fan in a refrigeration system and radial fan |
DE102018211848B3 (en) * | 2018-07-17 | 2019-11-07 | Ziehl-Abegg Se | Electric motor, fan and system consisting of electric motor and evaluation unit |
WO2019223882A1 (en) | 2018-05-25 | 2019-11-28 | Harmonic Drive Ag | Electrical drive device with condition monitoring |
WO2020015796A1 (en) * | 2018-07-17 | 2020-01-23 | Ziehl-Abegg Se | Electric motor and method for evaluating the vibration state of an electric motor |
WO2020015794A1 (en) * | 2018-07-17 | 2020-01-23 | Ziehl-Abegg Se | Method and system for evaluating the vibration behavior of an electric motor |
JP2021530195A (en) * | 2018-07-17 | 2021-11-04 | ジール・アベッグ エスエー | How to evaluate the operational readiness of electric motors, electric motors and fans |
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EP3106890A1 (en) * | 2015-06-19 | 2016-12-21 | General Electric Technology GmbH | Method for measuring a stator core of an electric machine and measuring device |
DE102015118695A1 (en) * | 2015-11-02 | 2017-05-04 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Electric motor with improved cooling |
CN108933501A (en) * | 2017-05-24 | 2018-12-04 | 明程电机技术(深圳)有限公司 | outer rotor radiating motor |
CN107154707A (en) * | 2017-07-06 | 2017-09-12 | 明程电机技术(深圳)有限公司 | Air convection type heat radiation motor |
US10353005B2 (en) | 2017-07-13 | 2019-07-16 | Itt Manufacturing Enterprises Llc | Technique for self learning motor load profile |
CN108551238A (en) * | 2018-05-08 | 2018-09-18 | 阜南县特立电子有限公司 | A kind of vibrating motor axis branch automatic press machine |
CN117289128B (en) * | 2023-11-24 | 2024-02-02 | 山东联创高科自动化有限公司 | Outer rotor permanent magnet synchronous motor testing device and method |
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US5629870A (en) | 1994-05-31 | 1997-05-13 | Siemens Energy & Automation, Inc. | Method and apparatus for predicting electric induction machine failure during operation |
US5726911A (en) | 1996-08-22 | 1998-03-10 | Csi Technology, Inc. | Electric motor monitor |
US20060191337A1 (en) * | 2005-02-25 | 2006-08-31 | Askoll Holding S.R.I. | Detecting device of unbalance conditions particularly for washing machines and similar household appliances, activated by a synchronous electric motor |
DE102005016855A1 (en) * | 2005-04-12 | 2006-10-19 | Siemens Ag | Interface module for arrangement in or on a motor |
DE102009013363A1 (en) * | 2009-03-07 | 2010-09-09 | Ziehl-Abegg Ag | Stator socket for drive unit of electric motor, particularly electronically communicating direct current motor, has casing and base, which has passage, where passage is limited by circulating lug |
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DE60016578T2 (en) * | 1999-03-24 | 2005-11-24 | Shell Internationale Research Maatschappij B.V. | MONITORING INTERNAL PARAMETERS OF ELECTRIC MOTORS |
US7126243B2 (en) * | 2000-11-22 | 2006-10-24 | Mitsubishi Heavy Industries, Ltd. | Supporting mechanism of micro gravity rotating apparatus |
DE10313273B9 (en) * | 2003-03-24 | 2016-10-20 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Electric motor with high IP protection |
DE102006032974B4 (en) * | 2006-07-17 | 2018-08-02 | Siemens Aktiengesellschaft | Electric drive with an electric machine |
US7821220B2 (en) * | 2006-09-29 | 2010-10-26 | Rockwell Automation Technologies, Inc. | Motor having integral programmable logic controller |
US8531147B2 (en) * | 2011-01-14 | 2013-09-10 | Remy Technologies, L.L.C. | Electric machine having an integrated vibration sensor |
US9431880B2 (en) * | 2013-04-25 | 2016-08-30 | Beijing AVC Technology Research Center Co., Ltd. | Device for monitoring the lifetime of the fan bearings |
-
2013
- 2013-03-14 DE DE102013102648.6A patent/DE102013102648A1/en not_active Withdrawn
-
2014
- 2014-03-13 US US14/772,993 patent/US9876410B2/en active Active
- 2014-03-13 WO PCT/EP2014/054929 patent/WO2014140155A1/en active Application Filing
- 2014-03-13 CN CN201480010397.0A patent/CN105008944B/en active Active
- 2014-03-13 EP EP14710533.2A patent/EP2972431B1/en active Active
- 2014-03-13 ES ES14710533.2T patent/ES2636803T3/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US5629870A (en) | 1994-05-31 | 1997-05-13 | Siemens Energy & Automation, Inc. | Method and apparatus for predicting electric induction machine failure during operation |
US5726911A (en) | 1996-08-22 | 1998-03-10 | Csi Technology, Inc. | Electric motor monitor |
US20060191337A1 (en) * | 2005-02-25 | 2006-08-31 | Askoll Holding S.R.I. | Detecting device of unbalance conditions particularly for washing machines and similar household appliances, activated by a synchronous electric motor |
DE102005016855A1 (en) * | 2005-04-12 | 2006-10-19 | Siemens Ag | Interface module for arrangement in or on a motor |
DE102009013363A1 (en) * | 2009-03-07 | 2010-09-09 | Ziehl-Abegg Ag | Stator socket for drive unit of electric motor, particularly electronically communicating direct current motor, has casing and base, which has passage, where passage is limited by circulating lug |
Cited By (15)
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WO2019197209A1 (en) | 2018-04-13 | 2019-10-17 | Trumpf Schweiz Ag | Method for controlling at least one radial blower in a cooling system, and radial blower |
DE102018108827B3 (en) | 2018-04-13 | 2019-05-29 | Trumpf Schweiz Ag | Method for controlling at least one radial fan in a refrigeration system and radial fan |
WO2019223882A1 (en) | 2018-05-25 | 2019-11-28 | Harmonic Drive Ag | Electrical drive device with condition monitoring |
DE102018211838A1 (en) * | 2018-07-17 | 2020-01-23 | Ziehl-Abegg Se | Electric motor and method for evaluating an oscillation state of an electric motor |
WO2020015796A1 (en) * | 2018-07-17 | 2020-01-23 | Ziehl-Abegg Se | Electric motor and method for evaluating the vibration state of an electric motor |
WO2020015794A1 (en) * | 2018-07-17 | 2020-01-23 | Ziehl-Abegg Se | Method and system for evaluating the vibration behavior of an electric motor |
DE102018211848B3 (en) * | 2018-07-17 | 2019-11-07 | Ziehl-Abegg Se | Electric motor, fan and system consisting of electric motor and evaluation unit |
CN112425049A (en) * | 2018-07-17 | 2021-02-26 | 施乐百有限公司 | Motor and method for evaluating vibration state of motor |
EP3824302A1 (en) * | 2018-07-17 | 2021-05-26 | Ziehl-Abegg Se | Method and system for evaluating the vibration behavior of an electric motor |
JP2021530195A (en) * | 2018-07-17 | 2021-11-04 | ジール・アベッグ エスエー | How to evaluate the operational readiness of electric motors, electric motors and fans |
US11770052B2 (en) | 2018-07-17 | 2023-09-26 | Ziehl-Abegg Se | Method and system for evaluating the vibration behavior of an electric motor |
JP7356493B2 (en) | 2018-07-17 | 2023-10-04 | ジール・アベッグ エスエー | How to evaluate the operational readiness of electric motors, electric motors and fans |
CN112425049B (en) * | 2018-07-17 | 2023-10-27 | 施乐百有限公司 | Motor and method for evaluating vibration state of motor |
US11892369B2 (en) | 2018-07-17 | 2024-02-06 | Ziehl-Abegg Se | Method for evaluating the operational readiness of an electric motor, electric motor, and ventilator |
US11894730B2 (en) | 2018-07-17 | 2024-02-06 | Ziehl-Abegg Se | Electric motor, fan, and system including an electric motor and an evaluation unit |
Also Published As
Publication number | Publication date |
---|---|
US20160020677A1 (en) | 2016-01-21 |
CN105008944A (en) | 2015-10-28 |
EP2972431A1 (en) | 2016-01-20 |
EP2972431B1 (en) | 2017-05-10 |
US9876410B2 (en) | 2018-01-23 |
ES2636803T3 (en) | 2017-10-09 |
CN105008944B (en) | 2017-10-13 |
WO2014140155A1 (en) | 2014-09-18 |
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